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Finding the Fourth Proportional to 630,547.75, 870,152.77 and 344,066.95

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Solution

The fourth proportional to 630,547.75, 870,152.77 and 344,066.95 is: 474,810.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,547.75 : 870,152.77 = 344,066.95 : x
  2. Step 2: Convert to fraction form
    630,547.75/870,152.77 = 344,066.95/x
  3. Step 3: Cross multiply
    630,547.75x = 870,152.77 × 344,066.95
  4. Step 4: Simplify right side
    630,547.75x = 299,390,809,607.95
  5. Step 5: Solve for x
    x = 299,390,809,607.95/630,547.75
  6. Step 6: Final answer
    x = 474,810.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.